Hello,
I am trying to get up to date with both SolrJ and Nested Document
implementation and not sure where I am failing with a basic test
(https://github.com/arafalov/SolrJTest/blob/master/src/com/solrstart/solrj/Main.java).
I am using Solr 8.6.1 with a core created with bin/solr create -c
solrj (schemaless is still on).
I then index a nested parent/child/grandchild document in and then
query it back. Looking at debug it seems to go out fine as a nested
doc but come back as a 3 individual ones.
Output is:
SolrInputDocument(fields: [id=p1, name=parent1,
class=foo.bar.parent1], children: [SolrInputDocument(fields: [id=c1,
name=child1, class=foo.bar.child1], children:
[SolrInputDocument(fields: [id=gc1, name=grandChild1,
class=foo.bar.grandchild1])])])
{responseHeader={status=0,QTime=1,params={q=*,wt=javabin,version=2}},response={numFound=3,numFoundExact=true,start=0,docs=[SolrDocument{id=gc1,
name=[grandChild1], class=[foo.bar.grandchild1],
_version_=1675769219435724800}, SolrDocument{id=c1, name=[child1],
class=[foo.bar.child1], _version_=1675769219435724800},
SolrDocument{id=p1, name=[parent1], class=[foo.bar.parent1],
_version_=1675769219435724800}]}}
Found 3 documents
Field: 'id' => 'gc1'
Field: 'name' => '[grandChild1]'
Field: 'class' => '[foo.bar.grandchild1]'
Field: '_version_' => '1675769219435724800'
Children: false
Field: 'id' => 'c1'
Field: 'name' => '[child1]'
Field: 'class' => '[foo.bar.child1]'
Field: '_version_' => '1675769219435724800'
Children: false
Field: 'id' => 'p1'
Field: 'name' => '[parent1]'
Field: 'class' => '[foo.bar.parent1]'
Field: '_version_' => '1675769219435724800'
Children: false
Looking in Admin UI:
* _root_ element is there and has 3 instances of 'p1' value
* _nest_path_ (of type _nest_path_ !?!) is also there but is not populated
* _nest_parent_ is not there
I am not quite sure what that means and what other scheme modification
(to the _default_) I need to do to get it to work.
I also tried to reproduce the example in the documentation (e.g.
https://lucene.apache.org/solr/guide/8_6/indexing-nested-documents.html
and
https://lucene.apache.org/solr/guide/8_6/searching-nested-documents.html#searching-nested-documents)
but both seem to also want some undiscussed schema (e.g. with ID field
instead of id) and fail to execute against default schema.
I am kind of stuck. Anybody has a working SolrJ/Nested example or
ideas of what I missed.
Regards,
Alex.
